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2.7x=8.4
We move all terms to the left:
2.7x-(8.4)=0
We add all the numbers together, and all the variables
2.7x-8.4=0
We move all terms containing x to the left, all other terms to the right
2.7x=8.4
x=8.4/2.7
x=3+0.3/2.7
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